Back to EveryPatent.com
United States Patent | 5,201,163 |
Reil ,   et al. | April 13, 1993 |
A method of producing a package for fluids made of a synthetic plastic material, in which a strip of the material is shaped to form two rows of tub-shaped containers which are filled, sealed, pairs of them being folded together to form a single container, and welded closed into a single container. In a particular preferred embodiment, two plastic webs are first brought together continuously and sealed along outer edges, to form a tube, with the tube then being filled from above, with thereafter transverse seals provided between pairs of adjoining tub-shaped containers.
Inventors: | Reil; Wilhelm (Bensheim, DE); Deutschbein; Ulrich (Muhltal, DE); Knobloch; Gerd (Griesheim, DE); Liebram; Udo (Pfungstadt, DE) |
Assignee: | Tetra Pak Holdings & Finance S.A. (Pully, DE) |
Appl. No.: | 614917 |
Filed: | November 16, 1990 |
Nov 24, 1989[DE] | 3938874 |
Current U.S. Class: | 53/410; 53/453 |
Intern'l Class: | B65B 047/00 |
Field of Search: | 156/272.2,272.4,275.1,304.2,304.6 264/139,248,249,510,511,524 53/453,559,561,574,410 222/129,145 426/106,115,108,119,392,394 |
2343734 | Mar., 1944 | Barber | 222/145. |
2497212 | Feb., 1950 | Donofrio | 264/4. |
2527919 | Oct., 1950 | Drangle | 426/120. |
2661870 | Dec., 1953 | Huenergardt | 222/129. |
2934867 | May., 1960 | Vogt | 53/453. |
2958168 | Nov., 1960 | Vogt | 53/453. |
3118041 | Jan., 1964 | Young | 156/272. |
3172927 | Mar., 1965 | Mojonnier | 425/388. |
3197071 | Jul., 1965 | Kuster | 222/145. |
3347699 | Jul., 1969 | Kinney et al. | 53/329. |
3512332 | May., 1970 | Klein | 425/387. |
3605374 | Sep., 1971 | Mueller et al. | 53/453. |
3695799 | Oct., 1972 | Held, Jr. | 425/388. |
4216046 | Aug., 1980 | Hackert | 156/274. |
4375146 | Mar., 1983 | Chung | 53/453. |
4704844 | Nov., 1987 | Mancini | 53/453. |
4907394 | Mar., 1990 | Tshepke et al. | 53/453. |
4967539 | Nov., 1990 | Hansen | 53/453. |
4994638 | Feb., 1991 | Iorns et al. | 426/241. |
Foreign Patent Documents | |||
0032257 | Jul., 1981 | EP | 53/453. |
0077756 | Apr., 1983 | EP. | |
0343266 | Nov., 1989 | EP. | |
1055802 | Apr., 1959 | DE. | |
1511800 | Jul., 1969 | DE. | |
2346039 | Mar., 1974 | DE. | |
2908397 | Sep., 1980 | DE. | |
3643030 | Jun., 1988 | DE. | |
567812 | Oct., 1957 | IT | 53/559. |